Polar M430 vs. Michael Kors Grayson vs. Jawbone UP Move vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Apple Watch 7

 
M430
Grayson
UP Move
Grayson
T-Rex
Watch 7
 PolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP MoveRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$255$350$50$350$140$429
Release201720182014201820192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours24 hours6 months24 hours20 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution128x128453 x 454NA453x454360 x 360396 x 484
Size1.4 inch1.39 inchesNA1.39 inches1.3 inches1.9 inches
TouchNA
TypeLCDAMOLEDNAAMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATMSplash Resistant1 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNAAndroid WearBuild-inWatchOS 8
Apps
Music

All Wearables